<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        *{
            color: red;
            background-color: antiquewhite;
        }
    </style>
</head>
<body>
    <!--
        【需求】选中页面上的所有的标签，给其字体颜色设置为红色
    -->
    <div>我是div1</div>
    <div>我是div2</div>
    <span>我是span1</span>
    <span>我是span2</span>
    <input type="text" value="你好世界">

</body>
</html>